4pk Genuine Filter Queen Majestic Vacuum Cleaner Activated Charcoal Black Cones Details: Highest quality original charcoal filter cones available. Fits all Filter Queen canister vacuums. Use of this activated charcoal cone helps to reduce/eliminate noxious odors and gasses from the air while you clean. Used in conjunction with the prefilter cones, each charcoal cone lasts up to 6 months. Product: Genuine Enviropure Filter Queen Charcoal Filter Cones Condition: Brand new, unused. Manufacturer: Genuine Filter Queen inkFrog Analytics